Type-casting machine.



E. B. BARBER. TYPE, ms'rma' 11110111112.v MPLI'OL'IIQI FILED 1'33. 18,19 11. BEIEWED 1 01. 11, 1011 I 1,01 1,558. Patented Dee 12,1911.

'4 SHEETS-SEEM 1.

INVENTOR ATTORNEY 2.3.3.11113511. TYPE CASTING 1110mm APPLICATION PILBD11B 13, I911. BEIEWEQINWL 11. N11.

Patented 1m. 12,1911.

mmrron 2813M.

lnozawzr WITNESSES:

BARBER.

' TYPE ASTING 114011132. r Arguauxon Hun 3.1:, 911. nmvjzwnn gov. 11,m1. 1,01 1,558. Patented Dec 12, 1911' i k I I! i I mum g mu VII I ,4TTORNH E.B,BA RBER. I TYPE CASTING MACHINE. A-PPLIOA'IIOR FILE-D H1113,1911 RENEWED NOV. '11; 1911.

1,611,558. I Patented Dec/12,1911;

4 sums-sum 4.

WITNESSES: -)WENTOR W W&

UNITED STATES PATENT OFFICE.

nmvnsr snnu umjnnmsnn, or NEWYORKQN; Y., assronon' r mH E on'mnio TYPE ji Specification o'f'Letter'sjhtent. 7 .a i iiq noam argtmar 1a, 1911,'Seria1 No. 608,440. Renewed November 11,1911.. Serial m). 659,840.

mncnmn oo mjraiwmmrrnn, or TORGNTO, CANADA, A CORPORATION or-oANA JA.

TYPE-CASTING MAGHINE' rapentea neeriz,i911.

To all whom it may concern:

Be it known :that I, ERNEST BENJAMIN .BARBER, of the borough'ofBrooklyn, in the county of Kingsz-and city and'State of New York,'have'invnted certainnew and use- ;1. ful- --Improvements 1 inType-Casting 'Machines; and Ihereby declare that'the followingisa'.full,1clear, and exact description. 10f the same. a I

' In my application for machines forcasting and composing types,:- filedMarch 2, 1909,: 'Serial"No;:480-,828, have-shown and describedtwo'melting pots, one alarge sup-' plypot from which the molten-metal ispumped to the smaller or working pot, both I potsbeing supplied; withsuitable burners :i'for-= heating, w and means whereby the over- *flowreturns from the workingpot to the ,Supp1y p c e g p having a'flilitervalsf 'P elector desqends and ticalpiston well in which,-and atproper ;i-' displaces a body of molten'metal' forcingj it 1 through thenozzle into" the moldicavlty.

In thesame application I=have shown and videdwith a foot plate to formthe foot of the type body, this footplate being attached described thetype bodym'old to'be proto the mold structure and providedwith an inletiaperture. alined with the mold cavity. In my application Serial No.564,29Q, filed May 31, 1910, I haveshownand describe d -certainstructural'::changes in the mach neforming the subject matter ofniy IVsaid pplicationASOfiQS, and owingto these structural, changes toincrease and ther *thetlype production, I have redesignedthe workinmelting pot to make it practical -for a high speed operating machine,and I I in have provided the type bo'dymold with a revoluble foot platehaving a'plural' number "of inlets successivelybrought into'relationwith the mold cavity at each casting operation, cleaned and" incondition forthe unobstructed flow Ofthe type-metal :forthe cast;

Inorder to obtain-the required rapidity of action I" have'provided theworking meltton well removably suspended in the'type ing pot with afhorizontally"arranged pis- 'metal reservoir 'in parallel relation to thetype-bodymold and submerged below the level ofthe type metal with an'inletbelow' """f'the-scum surface, and I have arranged the metalreservoir, piston well and-piston ejector,"withinthe working meltingpot, in .such a manner as'to be quickly and easily separated,clea-ned,fand reassembled without disturbing the organization orarrangement of their related parts. I have also providedapositivelyacting piston ejector and an actuating mechanism causing the pistonejector to reciprocatewithin the piston well and force a stream ofmolten metal through the nozzle into? the mold cavity ateaoh castingoperation, 1 the body of metal displaced by theaction of thepistonejector being-suflicient only'for the casting of the largest type-bodysize. I I have also arranged the mouth of the nozzle to form a metaltight joint withithe footplate when formedby the overrun of typemetal,and

I have'provided means to remove the gate and metalfia'kes-from the footplate sothat eachinlet will be; brought toiexa'ct position with themoldcavity cleaned and in condition for the cast.

I For an understanding of 'my, invention reference is to be had to thefollowi'ngidescription :and to the accompanying drawings-in which Figure1, is a perspective view showingthetype body mold, the foot plate,- theworkmg melting pot and-itsactuating mechanism the working melting potbeing partly broken away to show its. internal construction. Fig; 2, isaplan view partly in section, with the'working melting pot and'itsassociated parts locked at their casting position. Fig; 3, is aperspective view of; the'piston ejector. Fig. 4,-is a perspective viewofthe piston well. Fig; 5; is a vertical section on F the line 'a'-.a Fig.Fig. 6, is a similar view to Fig. 5, with the parts in theirre- "tractedpos tion; Flg. .7,-1s arear View of the mold," T the foot plate, and;actuating.

mechanism. "Fig.8, .is a perspectlve view of :theparts 'shownxin 7, withthea foot plate removed. Fig. 9, is a section on the line cZcZ Fig. 7. f

'Like characters of reference refer to'like parts throughout thespecification and 5 drawings. e i The type metal reservoir a of theworking melting pot is small in comparison to the quantity of type metalused during the operation of a type casting machine and it is 10 to beunderstood that the reservoir is to be constantly supplied from a largerpot similar to that shownin my said concurrent application 480,828, the

aburner b placed beneath it.

I Surrounding the reservoir a is a jacket 0 fastened at its base to themain frame 0 formed, to direct the heat from the burner around thereservoir aiand nozzle of, and, to-prevent the radiation of the heat tothe other parts of the machine. The upper edge of the reservoir isprovidedwith outwardly projecting lugs a which slidably rest in therecessed part c of the upper edge of, the jacket 0 for the purpose. ofmovably supportingthe reservoir within the jacket as hereinafterdescribed. The piston well a is horizontally disposed in the metalreservoir a below the normal level of the type bar a is fixedly attachedtothe nozzle a of the piston well a and its ends rest in notches a inthe upper edge of the met-al;,

reservoir (1, to removablysupport the forward part of the piston'well 1na fixed posi-' tion with relation to the reservoir. The rear end of thepiston well a rests against the inner wall of the reservoir a and isremovably supported upon a shoulder a provided within the reservoir. v

The piston well is provided with a nozzle when the arts are in theircasting position extends slightly beyond the outer surface of the jacket0, The mouth a" of the nozzle a is concaved and formslwith the footplate d, when locked up, a metal-tightjoint around the inlet. al toprevent splashing or leakage of the type metal during they cast, theconcave formation of the mouth also providing for the overrun of metal.The nozzle a does not, as heretofore been usual, enter the inlet (Z inthe foot plate d, but surrounds it when lockedup against the face of thefoot pla'te, thus eliminating binding or hang- .mg when retracting afterthe cast and rendering the, action of the working melting pot practicalfor a high speed operating machine. v During the operation of themachine,. .the working melting pot is moved forward in the jacket '0until the mouth of the nozzle is ward in the piston well to l the mouthof the type metal in the res 'ervoir being kept in a molten condition,by

metal and has an inlet or below the scum,

a projecting through the reservoir and locked against the adjacent faceof the foot plate d, andtforms with it a met-a1 tightj oint. The pistonejector is then moved for eject type metal for the cast, the type metalflowing through nozzle, and the positioned inletrl, into the moldcavityE, and when the cast is made, the reservoir and its asso ciatedparts are retracted from the foot late. p Inorder to effect thereciprocating action ofthe reservoir and its aseociated parts, I providethe working melting pot with a rock shaft f having a crank arm. 7 towhich is connected one end of a link f, the other end of the link beingconnected to the lever f fulcrumed to the main frame 0, and actuated bya. .cam f on the high speed shaft 7.

'I also provide the rock shaft f with a crank arm 7 having its free endconnected by a link f with the body part of the piston well a During therotationof the high speed shaft f, the cam f revolves and moves theupper end of the lever f in the direction indicated by arrow inFig.l1,-moving the lower end of the lever f and link f in the oppositedirection. This movement of the link, through the agency of the crankarm f, turns the rock shaft f in the direction indicated by arrow in thesame figure. and

moves the crank arm f toward the working melting pot. This movement ofthe crank arm 'f", through the agency of the link 7", pushes the pistonWell toward the type body mold E. The piston .well being stationary .inthe reservoir a, imparts to the reservoir the motion communicated by thecrank arm f and link f causing the reservoir to move forward in thejacketc to the limit of the movement of the parts, this movement beingprovided for by t-heolength of the recesses 0 and determined by the camf when the mouth of the nozzle has been tightly locked up against thefoot plate cl.

Loosely mounted upon the rock shaft f is a sleeve g provided with acrank arm 9 connected by a link with the lower "end of a lever g, theupper end of the lever g" being actuated by a cam g mounted on the highspeed shaft f. The sleeve 9 is also provided with a crank arm 9connected by a link g with the lug 0a of the piston ejector a When themouth ofthe nozzle is locked against the foot plate, the-cam gaot-uates'the lever g to rock the sleeve 9 and move the crank arm 9andlink g". toward the type body mold E. This motion of the crank armand link pushes the piss ton ejector in the direction of the nozzle ofthe piston well and causes the ejection of type metal through the nozzleinto the mold.

Coiled upon the link is a spring gtwhich effects the return of the partsto their normal position when the lever g is relieved if the influenceof the cam g. This spring g bears against a lug 0 forming part;.,of

the main frame 0 and against a collar g on the link g3, forcin thelinkinthe (tire in uence of the cam g and reverses the movement of thecrank arm 9 and link '9 retracting the piston ejector a in the pistonwell, until the shoulder g comes into en: gagement with thelug P, and byits continued movement restoring the reservoir a to its initialposition. 1

It is through the agency of the parts enumerated. that "the reservoirand its associated parts are locked in the casting position, and thetype metal is ejected from the piston well into themold cavity, andsubsequently returned to their normal or initial position.

The constructive details of the type-body mold E are slightly differentfrom those shown in my said concurrent application, but they operate insubstantially the same manner. j g g As the mold forms no part of mypresent application itwill not be necessary to'refer to its constructionfurther than to describe fao the mold cap e".

the operation of its parts in conjunction with the action of the footplate and-locking member. o v

, Mounted upon the high speed shaft f is a ram 9, which, upon eachrotation of the cam shaft, causes the oscillation of the rock shaft a",and through its connections raisesand lowers at proper intervals themold cap e 7 e In order "to lock the mold parts tightly to 'getheifduring the cast there is rigidly attached to the'rockshaft e" acrankconnected by a link a witha locking member 6' which alternately opensfrom and closes against The locking member 6 is loosely mounted to rockupon the hollow stationary shaft 0 supported in lugs-,0?"

projecting from the stationary part as of shaft 6 is the stud e' of aratchet wheel d7 j intermittently rotated by a'spring tensioned ratchetpawl 01, pivoted to the locking memher a, Fixed on' the" stud" 6 is thefoot plate d having inlets kl corresponding.

number and pitch with the teeth ofthe into position with the moldratchet wheel df so that the. intermittent. v rotation of the ratchetwheel will intermittently and successively brin the inlets d The edge ofthe foot plate 03 is provided with notches (Z to receive the springdeten't d, preventing. the reverse rotation of the foot plate andholding it in its fixed position until rotated by the action of theratchet pawl 03'. "The inlets (1* are beveledto-form. knife edges at theinner.- face of the foot. plate, and these lmife edges operate to shearoff the gates formed'on the ty ')e'.-

r With each rotation of the high speed shaft f the cam e operates tooscillate the rock shaft 0, the resultant actions of this oscillation'being tobring the mold cap e into its closed position against thestationary part e of the mold, through the agency of the cranks e andlinks 6 and succeeding the action of closing the mold cap, the crank eand its link connection a operate to close-the locking membere againstthe mol d,c apaan d hold it securely in its closed position during thecasting of the type body. Coilncident with the closing of thelockingmember a against the mold cap e the ratchet-pawl d engages atooth of :the, ratchet wheel ,df for the next partial rotation of theshaft 6 and foot plate 01. The cams f and g now act simultaneously, theone to move the type metal reservoir a and its associated parts towardthe type mold E until the mouth of the nozzle a engages the foot plate01 and forms with it a metal tight joint. The cam 9 continues its actionand causes the intervening parts to force the piston ejector a forwardin the piston well a" to eject'a stream of molten type metal through thenozzle a and inlet 0Z into' the mold E. The cam g is so timed that whenthe ejection of typermetal has taken place, it releases the parts andthey are then returned to their normal position under the influence.ofthe spring 9.

During the retraction of the parts effected by the spring g, theshoulder g of the link connection 9 comes into-contact with anoverhanging lug f of thelink connection f" attached to thebody part ofthe piston well a, and effects the retraction of the link connection fpiston well a and metal reservoir a, bringing all the parts back totheir normal position. Upon the return of the Working melting pot andits-related parts to their normal position,ithe came acting uponthe rockshaft c" releases the locking member e from. the mold cap a, and by itsaction causes the ratchet pawl dflto rotate the ratchetv wheel d", andfoot plate d.

During thisjmovement of the footplate d, -the' knifejedgerof the inlet dtrimsthe vgatefrom the type then withinthe moldjE, the

gate'ibeing carried by the foot plate ,{to a pick d attached to someconvenient part of the machine structure, which removesit, this movementof the foot plate also bringing a succeeding .inlet cl, into positionwith the mold cavity for the" next cast. foot plate revolves between thepick di-ion one.

side, anda'wiper d onthe otherside to respectively; remove the gates andmetal flakes. from, the foot plate as it revolves so that each inlet 01.when itipassesf-{the pick and wiper Will be thoroughly cleaned toprovide an unobstructed passage for the type metal into the mold. Themold cap e isthenlifted and the ty e is delivered by the ejeetorblade efrom e mold to the place of assemblage. Y The continued action of theparts closes the mold cap against the sta tlonary mold part c and bringsthe locking member a up to engagement with, but not tightly against, themold cap.

The special feature of this construction of a working melting pot isthat its parts can be quickly and easily detached,'separated, cleaned,repaired, reassembled and. replaced, and by the arrangement of thepiston well in parallel lines with the type chamber, it is possible toprovide for the displacement of metal necessary for rapidcasting, and toreduce to a minimum the disturbance of the metal ahead of thepistonejector, which, in the present instance, is so slight as not-torequire any considerable exertion of power or strain of the parts, andby the use of a revoluble foot plate, it is possible to bring to exactposition to f0rm-the base of the type a foot plate with inlets cleanedand in condition for the cast.

By providing the piston well with a nozzle to deliver the type metal toa type'body mold in the same direction as the action of the piston, thedisplacement of. metal by' the piston to eflect the cast has been toreduced as to increase the rapid operation of the machine. v

Having thus fully described my invention what I claim asnew and desireto secure by Letters Patent is 1. In a working melting pot for atypecasting machine, a .pistonwell, and a nozzle for the piston wellhaving a cup-shaped mouth to contain the overrun of metal from thechange of type body size.

2. In a working melting pot for a type casting machine, a stationaryjacket, a metal reservoir suspended to .reciprocate within the jacket, apiston well horizontally and removably supported within themetal'reservoir, a piston. ejector operating in the piston well, and anozzle for the piston Well to deliver the metal horizontally to a typebody mold. 3. In a working melting pot for a type casting machine, astationary jacket, a metal reservoir supported to reciprocate within thejacket, a piston well horizontally suspended in the metal reservoir, andactuated to cause the metal reservoir to move in a forward direction, apiston ejector operating in the piston well actuated to eject the metalfor the cast and to return the metal reservoirwith the piston well andpiston ejector to their normal position. f

1. In a type-casting machine, in combination, a type body mold, and arevoluble footplate having an inlet with a shearing edge.

as .the foot plate rotates, and means forcausing the intermittentrotation of the foot plate and bringing the inlets successively intorelation with the type body mold.

7. In a type-casting machine, in combination, a type body mold, and arotatable foot plate having a plural number of inlets successivelybrought into relation with the type body mold-and having shearing edgesto trim the feet of the type bodies as the foot plate rotates.

8. In a type-casting machine, in combination, a type body mold, arotatable foot plate having a plural number of inlets having shearingedges to trim the feet of the type bodies as the foot platerotates;'means ,for causing the intermittent rotation of the footplate,'and means for cleaning the inlets whereby. they are successivelybrought into relation with the type body mold cleaned and in conditionfor casting.

9. In a type-casting machine, in combination, a type body mold, arotatable. foot plate having an inlet with a shearing edge to trim thefoot of =a type body as the foot plate rotates, and means for cleaningthe foot plate.

' 10. In a type-casting machine, in combination, a type body mold, and arotatable inlet therefor having a shearing edge to trim the foot of atype body, brought during its rotation into operative relatlon with thetype body mold cleaned and in condition for casting.

11. In a working melting pot for a type casting machine a stationaryjacket, a metal reservoir movably supported therein, a piston wellhorizontally supported in and unitedly movable with the metal reservoir,

a piston ejectoroperati'ng in the piston well and operable means causingthe movement ofthe metal reservoir to bring the piston well intooperative relation with a type body mold.

1 Brooklyn, N. Y., January 21st 1911.

El tNEST BENJAMIN BARBER. Signed .in the presence of--- CHAS. H. Rrorms,CECELIA HANSEN.

